codecov
Domain: Testing Quality
🎯 Motivation
codecov is a cloud service that visualizes coverage data and tracks it over time on pull requests. It enforces quality gates by failing CI checks when coverage drops below a threshold.
📋 Concrete Example
After CI runs tests with coverage, results upload to codecov.io, which posts a comment on your PR showing a diff of coverage and flagging newly untested lines.
🔗 Analogy
codecov is like a fitness tracker for your codebase. It charts your “exercise” (test coverage) over time and warns you when you start skipping workouts.